/Engine/Plugins/Interchange/Runtime/Source/FactoryNodes/Public/InterchangeMaterialFactoryNode.h
Set the unique ID of the material function that the function call expression is referring to. Note that a call to AddFactoryDependencyUid is made to guarantee that the material function is created before the function call expression
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Interchange | Node | Material") bool SetCustomMaterialFunctionDependency ( const [FString](API\Runtime\Core\Containers\FString) & AttributeValue )